Packet driven skills may also be delivered via a fist unless stated otherwise in the skill.
Rulebook - Page 112
Shatter –LP Skill, Reload Skill, Charged Skill An Empath is able to summon forth the energies required to shatter weapons, armor, and shields. The Empath must spend 1 Life Pointandthen throw a packet, calling "Shatter." This skill has a 10 second reload.Alternatively, the Empath can use this skill to destroy items. To do so, the Empath must charge this skill for 90 seconds, hit the target with a packet or weapon, and call “1 Structure Point.” (This Structure Point damage has no effect on Buildings).See Structure Points on page83
Rulebook - Page 17
Charge-up Skills Some types of skills require intense amounts of concentration to use properly. These skills have a set amount of time that the character must spend either studying the intended target or summoning the energy forth in order to use them, during which time the character must remain still and not move. Because of the needed concentration, being struck by a weapon, fist or packet (this includes your shield
106being struck) or intentionally prodded in some other manner while charging or prior to using the skill causes the skill to be lost and the Charge-up time to reset. Also, performing actions that are obviously not related to the task at hand such as sleeping, eating, lying down, etc.will also disrupt a skill. These skills cannot be used in conjunction with other non-passive skills. While charge times for skills can be modified through items, magical effects, and Empirical Enhancements, normal charge times cannot be reduced below a 2 second charge time.
Rulebook - Page 105-106
I will half agree with Phil. There is nothing permitting you to walk with this while it's charged. However, it looks like you
CAN deliver it through a fist. If Phil told you this at the last Winter Haven, then Phil was making a field call. However, if it is the intention of the GMs to not make this skill available to be delivered through a fist, then they would need to make the proper amendments/announcements.